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0028016Open CASCADE[OCCT] OCCT:Modeling Algorithmspublic2016-10-27 18:112018-10-12 20:47
[OCCT] 7.4.0* 
bugs moddata_2 bug565
0028016: Different result of intersection algorithm between two plane-like cones on Windows and Linux platform
The quotation of the message 0027431:0059293.

There is different behavior on Windows and Linux platform even on the current MASTER. Namely, set of IntPatch_Point(s) (vertices) is different. E.g. we have three vertices on both Windows and Linux. However, two vertices are matched on the Windows. On the Linux, the distance between them is ~ 1.0e-4 (square distance = 1.16190303248061e-08). Small second curve is built between these vertices.

The fix (for issue #27431) does not touch the algorithm of vertex computation. Therefore, the problem exists on the MASTER. But it is hidden by something.

New algorithm (applied in the fix) is forced to use vertices (as the point, which marks singularity). Therefore, described bug has been naked.

The issue 0000565 was created because the intersector did not return any result in case of trimmed cones. Now, it returns the result. But this result is different on Windows and Linux. Therefore, the problem described in the issue 0000565 is not reproduced on the fix.
test bugs moddata_2 bug565
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Issue History
2016-10-27 18:11nbvNew Issue
2016-10-27 18:11nbvAssigned To => msv
2016-10-27 18:12nbvPrioritynormal => low
2016-10-27 18:12nbvRelationship addedrelated to 0027431
2017-08-25 11:04apvTest case number => bugs moddata_2 bug565
2017-08-25 11:04apvNote Added: 0069868
2018-05-24 17:51msvNote Added: 0076247
2018-06-14 10:02nbvNote Added: 0076760
2018-06-14 10:02nbvAssigned Tomsv => nbv
2018-06-14 10:02nbvStatusnew => feedback
2018-07-09 10:29nbvNote Added: 0077384
2018-07-09 10:30nbvAssigned Tonbv => bugmaster
2018-07-09 10:57bugmasterStatusfeedback => verified
2018-07-09 10:57bugmasterResolutionopen => fixed
2018-10-12 20:47abvTarget VersionUnscheduled => 7.4.0*

2017-08-25 11:04   
Problem described in issue is reproduced on current state of OCCT.
2018-05-24 17:51   
This is fixed by #29511.
2018-06-14 10:02   
Also it is fixed by the branch CR29807*.
2018-07-09 10:29   
This problem is not reproduced on the current MASTER.